it should be in the BIOS. check your manual, or download it.
Look for MB Intelligent Tweaker(M.I.T.) in the BIOS.
check for System Voltage Control, set it at manual
now, in DRAM Voltage Control, set it a bit higher than what your RAM is stated for.
save and exit, it should reboot
give it a try. if your memory is normally a 1,5 volt, you can go at 1,6. I don't remember it I went to 1.55 or right to 1.6 with mine thou..